경계면 물성치에 따른 말뚝 거동 분석 - 근거리 사진계측을 이용한 모형시험과 수치해석 비교

In this study, model pile-load test with numerical analysis was carried out to compare and analyze pile behaviour according to interface properties. In the model test, Close Range Photogrammetry (CRP) was chosen to measure the ground deformation. In addition, model steel and concrete piles were used. Based on the model pile test, interface elements around the model pile were used to simulate the slip effect. Interface properties were adopted as interface reduction factor Rinter. Interface reduction factor, Rinter plays a key role in the interface properties. Through this study, it was found that the model ground behaviour measured by CRP corresponded well to the one predicted by the numerical analysis. And, the interface strength reduction factor, Rinter value of the steel pile was higher than that of the concrete pile.